Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bac danh di snippets" » "tac danh di snippets", "bac dan di snippets", "ban danh di snippets", "bac danh du snippets", "bac xanh di snippets", "bac danh dien snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("bac danh di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bac danh di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bac danh di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac danh di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.